China latest patents query

The latest invention patents collect the data information of China invention patents from 2000 to 2024, typesetting according to the date of patent publication, including patent number, application date, invention Bibliographic data, abstracts, and specification data of people are convenient for scientific researchers to quickly browse and search for patents.

Seafood sausage production method

InactiveCN104839757AGreat tasteSmall fishy smellFood preparationBiotechnologyFood item

Owner:ANHUI WINS ONE MEAT FOOD

Free-climbing safe rope fastening apparatus used in tree cutting

ActiveCN106577168AGuarantee personal safetySimple structureForestryEngineeringMaterial Perforation

Owner:LISHUI POWER SUPPLY COMPANY OF STATE GRID ZHEJIANG ELECTRIC POWER +2

Compound microbial water-soluble fertilizer and its preparation method

InactiveCN102531747ANutritional balanceIncrease the granular structureFertilizer mixturesDrip irrigationDissolution

Owner:三门峡龙飞生物工程有限公司

Combined LED ceiling lamp

InactiveCN108709130AEasy to adjustSimple structureLight fasteningsSemiconductor devices for light sourcesEngineeringLED lamp

Owner:茹朝贵

Advanced analytical infrastructure for machine learning

InactiveCN106250986AError detection/correctionMachine learningLearning machineData set

Owner:THE BOEING CO

Sand casting device for casting part machining

InactiveCN112846076AIncrease the number of transfersIncrease productivityMould handling/dressing devicesMining engineeringSand casting

Owner:孙廷龙

Joint prosthesis with anti-dislocation structure

PendingCN114762638APrevent dislocationEasy to useJoint implantsFemoral headsRight femoral headFemoral bone

Owner:武汉福迪康医疗器械有限公司

Organic-inorganic composite passivator for cadmium contaminated soil and using method of composite passivator

InactiveCN107603633ARelieve pressureImprove acidificationOther chemical processesContaminated soil reclamationReagentWater content

Owner:GUANGXI UNIV

Ward calling system

InactiveCN103646481AHumanizedImprove reliabilityElectric transmission signalling systemsMicrocomputer systemVoice-operated switch

Owner:DALIAN CHUANGDA TECH TRADE MARKET

Manually-recharged electric torch

InactiveCN104500993AMeet the use requirementsAvoid inconvenienceLighting device with mechanical drivePoint-like light sourceElectricityTorch

Owner:遵义市义阳光电有限公司

Multi-box pulse-type high-pressure circulating cleaner

InactiveCN102476118AEasy to cleanImprove operational efficiencyHollow article cleaningPulser pumpMaterial resources

Owner:赖东峰

Image recognition model training method and device, image recognition method and device, and electronic equipment

PendingCN111476284AReduce labeling costsImprove labeling efficiencyCharacter and pattern recognitionEngineeringSample image

Owner:杭州网易智企科技有限公司

Archive representative picture generation method and device and electronic equipment

ActiveCN111061899AImprove accuracyImprove recallCharacter and pattern recognitionStill image data clustering/classificationEngineeringComputer vision

Owner:SHENZHEN INTELLIFUSION TECHNOLOGIES CO LTD

Secondary hydration and deep cooling separation combined process for separating ethene cracking gas

InactiveCN100430351CReduce cooling loadReduce consumptionHydrocarbon purification/separationHydrocarbonsHydrogenTower

Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Riverway floating object detection algorithm under static camera

PendingCN113343932AImprove detection accuracyAccurate detectionCharacter and pattern recognitionRiver routingEngineering

Owner:湖南汇视威智能科技有限公司

Mounting bracket for cylindrical electronic ruler

InactiveCN107830828AEasy to installEasy to adjustMeasurement devicesInsertion stentEngineering

Owner:黄石佳鼎自动化科技有限公司

Double-hemispheric capsule robot attitude detection method based on magnetic vector error calibration image

ActiveCN110327011AImprove utilization efficiencyAvoid interferenceSurgeryEndoscopesDistribution characteristicRotation matrix

Owner:DALIAN UNIV OF TECH

Robot-assisted joint replacement surgical system secured to bone and method of use

PendingCN113693726AHigh precisionEasy to useDiagnosticsSurgical navigation systemsPhysical medicine and rehabilitationOperating theatres

Owner:捷多(常州)医疗科技有限公司

Method for removing fluid mud from sewage treatment tank

InactiveCN110282672AEasy to cleanTreatment involving filtrationWater/sewage treatment apparatusTreatment pondSludge

Owner:安徽清蓝环保工程有限公司

Small-sized long-endurance fixed-wing unmanned aerial vehicle power supply controller system and running method

ActiveCN107963202ASolve the problem of long flight timeCompact structureElectric power distributionPower installationsMicrocontrollerUncrewed vehicle

Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

High-efficiency dense-medium shallow-tank separator

InactiveCN101712012AEasy to processSave materialWet separationFluidized bedEngineering

Owner:沈阳北方交通重工有限公司

Kitchen violation behavior detection method and device, equipment and storage medium

InactiveCN111507320AImprove generalization abilityImprove detection accuracyBiometric pattern recognitionNeural architecturesAlgorithmData information

Owner:PINGAN INT SMART CITY TECH CO LTD

Efficient heat exchange system suitable for solid heat storage device

PendingCN109916212AImprove conductivityReduce cryogenic operating temperatureHeat storage plantsHeat exchange apparatusElectricitySystems design

Owner:西安易能智慧科技有限公司

Organic fertilizer capable of promoting reproduction of gastrodia tuder halimasch and preparation method of organic fertilizer

InactiveCN107759285AReasonable effectGood effectMagnesium fertilisersAlkali orthophosphate fertiliserDipotassium phosphateArmillaria

Owner:CHISHUI YICHENG BIOTECH CO LTD

Integrated fixture of laser chip

PendingCN109596867AStable pressureGuaranteed extrusion strengthWork holdersMeasurement instrument housingEngineeringControl circuit

Owner:STELIGHT INSTR CO LTD

Series of underwater vision articles

InactiveCN101282768ASwim gogglesSwim capsEngineeringUnderwater vision

Owner:DECATHLON SA

Multifunctional organic-inorganic fertilizer applicator

PendingCN114846972ASolve key problems in useReasonable structural designFertiliser distributersAgriculture gas emission reductionCircular discDrive wheel

Owner:NANJING AGRICULTURAL UNIVERSITY

Dust removing device for injection molding toys and application method thereof

InactiveCN109174730APrevent looseningEasy to clean and dustCleaning using toolsCleaning using gasesAir compressionMotor drive

Owner:广州乐迎天玩具有限公司

Plug easy to pull by being pressed

InactiveCN104377504ASimple structureEasy to manufactureCoupling device detailsEngineeringMechanical engineering

Owner:宁波市鄞州均成机械制造有限公司

Business application promotion method based on drug research and development data

PendingCN111489198AIncrease sales successMarket data gatheringPharmaceutical drugThe Internet

Owner:南京中爱人工智能与生命科学研究院有限公司

Neck-mounted sight distance maintaining device and method, neck support device and adjusting method of neck support device

PendingCN112294517AMeasurement devicesAlarmsComputer hardwareOphthalmology

Owner:JIANGSU ALPHAY MEDICAL DEVICE

Large-scale wall foaming cement heat preservation system

InactiveCN103628576APlay the role of thermal insulationBeautiful appearanceCovering/liningsHeat proofingGlass fiberMaterials science

Owner:耿志兴

Structure of novel bar material transporting frame

InactiveCN102632186ASimple structureEasy to transportHandling devicesProduction rateAssembly line

Owner:张呈喜

Backlight FPC and display device having the same

PendingCN107360669AReduce production materialsReduce manufacturing costStatic indicating devicesPrinted circuit aspectsDisplay deviceComputer science

Owner:TRULY SEMICON

Mobile phone lens telescoping control device and control method

PendingCN108107537AAutomatically control stretchingAdjust the camera distanceProjector focusing arrangementCamera focusing arrangementCamera lensOptoelectronics

Owner:广东猎奇高科技有限公司

Metal organic framework material semiconductor crystal and preparation method and application thereof

ActiveCN114805837ALow reaction temperatureEasy to makePhotovoltaic energy generationLamellar crystalsMicron scale

Owner:MINDU INNOVATION LAB +1

Plastering construction method for wall base layer

InactiveCN107489250APrevent shrinkage crackingImprove adhesionCovering/liningsSlurryPlastic film

Owner:广东省第二建筑工程有限公司

Modularized portable music percussion pad based on single chip microcomputer

PendingCN109686350AReduce manufacturing costQuality assuranceElectrophonic musical instrumentsPercussion padMicrocomputer

Owner:TIANJIN UNIV

Social e-commerce mode based on multi-role labor division cooperation

PendingCN112330409AMeet the needs of useEasy to useDiscounts/incentivesOffice automationService guaranteeKnowledge management

Owner:迈集客网络技术(深圳)有限公司

Hammer with screwdriver

InactiveCN105773537AEasy to useMulti-purpose toolsEngineering

Owner:黄安平

Method and device for determining traffic mode

PendingCN110084650AImprove universalityDetection of traffic movementLogisticsReal-time computingData processing

Owner:BEIJING SANKUAI ONLINE TECH CO LTD

Visual positioning device and positioning method for discharge point of power distribution equipment

PendingCN113917284AImprove Visualization AccuracyRealize the visualization functionFault location by conductor typesTesting using acoustic measurementsElectric machineryEngineering

Owner:STATE GRID INTELLIGENCE TECH CO LTD

Technology for producing sponge iron by taking carbon-Lan as reducing agent

InactiveCN102618686AFluidised-bed furnacesTunnel kilnCrusher

Owner:LAIWU TAIDONG POWDER TECH

Electrochemical circulating water treatment system and process thereof

PendingCN112875945AIncrease profitNo secondary pollutionWater contaminantsDispersed particle separationElectrochemistryTreatment system

Owner:浙江安耐杰科技股份有限公司

Underground pipeline pressure measuring device for urban water supply

InactiveCN112460446AImprove convenienceEasy to useMachine part testingMachine supportsUrban water supplyStructural engineering

Owner:曾耀华

Filter screen cylinder assembly of back-washing filter

InactiveCN102989221AMeet the requirements of backwashingStable structureGravity filtersStationary filtering element filtersMetal stripsDistributed filtering

Owner:NINGBO LONG WALL FLUID KINETIC SCI TECH

Bridge constructing frame

InactiveCN105803945AEasy to layBridge erection/assemblyElectrical and Electronics engineering

Owner:孟书芳

Intelligent detection system for preventing transmission circuit from being damaged by external force

InactiveCN109407101ASend fastImprove monitoring efficiencyAcoustic wave reradiationWireless mesh networkBand-pass filter

Owner:JUXIAN POWER SUPPLY CO STATE GRID SHANDONG ELECTRIC POWER CO

Posture monitoring system

InactiveCN101053518AGymnastic exercisingDiagnostic recording/measuringMonitoring systemStrain gauge

Owner:杨章民

UVLED module with composite lens structure and preparation method thereof

InactiveCN106950619AFlexible combinationReduce difficultyLensInjection mouldingInjection molding process

Owner:SUN YAT SEN UNIV

Anti-impact and shockproof rubber piece

InactiveCN105602038AHigh tensile strengthHigh tear strengthMethacrylateProcedure Agents

Owner:NINGGUO SHUNDA SEALING

Classified management method applied to security baseline software

InactiveCN106055984AImprove securityImprove efficiencyPlatform integrity maintainanceNODALInformation security management

Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD

Simple door and window lock catch connecting rod and numerical control machining method thereof

PendingCN113846909ALarge torqueWays to increase self-helpBuilding locksNumerical controlStructural engineering

Owner:上海建桥学院有限责任公司 +1

Anti-counterfeit label structure and identification method

InactiveCN104517522ARealize identificationScreening to achieveStampsRecord carriers used with machinesBarcodeData mining

Owner:巫应传 +1

Harmless biological pretreating method of waste battery

InactiveCN1332482AHarmlessReduce the cost of mass productionSolid waste disposalReclaiming serviceable partsPretreatment methodAfter treatment

Owner:SHANGHAI JIAO TONG UNIV

Hub carrier for a vehicle wheel

ActiveCN106660390ASimple designEasy to makeSuspensionsHubsTransverse axisEngineering

Owner:PEZHO SITROEN AUTOMOBILS SA

Aluminum template diagonal bracing structure special for lightning protection of high-speed rail

InactiveCN105586981AEven by forceAvoid deformationFoundation engineeringArchitectural engineeringTower

Owner:JIANGSU YAFENG TECH GRP CO LTD

Solar rolling glass kiln stove and manufacture method thereof

InactiveCN102219347ALow running costGood for controlling uniformityGlass furnace apparatusCombustionEngineering

Owner:XINYI PHOTOVOLTAIC IND (ANHUI) HLDG CO LTD

Subject term mining method and device, electronic equipment and storage medium

ActiveCN112784009ANarrow down the scope of excavationNatural language data processingNeural architecturesLinguistic modelEngineering

Owner:BEIJING UNIV OF POSTS & TELECOMM +1

Medical injection limiting device for pets

PendingCN114767313AAvoid bitesReduce the hassle of manual operationAnimal fetteringPhysical therapySurgery

Owner:文加虎

Optimised shift strategy as a function of strip width and rolling machine using the method

ActiveCN1894054BMetal rolling stand detailsMetal rolling arrangementsBand widthElectrical and Electronics engineering

Owner:SMS DEMAG AG

Hydraulic system of mining anchor cable tensioning machine

InactiveCN108916148AMeet the requirements of continuous automatic superchargingServomotor componentsFluid-pressure convertersReciprocating motionEngineering

Owner:ANHUI UNIV OF SCI & TECH

Endoscope camera

ActiveCN112022062AImprove the shooting effectAddresses issues with not being able to adequately light a shotEndoscopesEngineeringLamp shell

Owner:STSIVITA MEDIKAL TECH KO LTD

Automobile tire balancing machine

PendingCN114199458AEasy to operateSolve functionStatic/dynamic balance measurementVehicle tyre testingTire balanceBalancing machine

Owner:中意泰达(营口)汽车保修设备有限公司

Energy-saving type high-temperature and high-pressure reaction kettle

PendingCN108404814AImprove heating efficiencyEfficient heatingPressure vessels for chemical processThermal energyDistillation

Owner:ZIBO FEIYUAN CHEM CO LTD

Method for industrially producing bottle-cultivated or bag-cultivated lentinus giganteus berk without earthing

InactiveCN102487723BReduce consumptionAvoid pollutionHorticulturePesticide residueWide mouth

Owner:INST OF SOIL & FERTILIZER FUJIAN ACADEMY OF AGRI SCI

Assembling device for liquid crystal display module set

InactiveCN1658027AEasy to operateComfortable workStatic indicating devicesLiquid-crystal displayMechanical engineering

Owner:HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1

Cable conductor stranding machine

InactiveCN106205883AElectrical performance recoveryImprove electrical performanceApparatus for heat treatmentElectricityElectrical conductor

Owner:CHAOHU JINYE ELECTRIC MACHINERY

Embedded etching groove machining device for integrated circuit semiconductor

InactiveCN112404739AEasy slottingIncrease flexibilityLaser beam welding apparatusMechanical engineeringSemiconductor

Owner:合肥高地创意科技有限公司

Coal pulverizer

PendingCN108554597AImprove work efficiencyNot easy to be squeezed and restrictedGrain treatmentsFuel tankEngineering

Owner:范兆孟

Harmless treatment method for livestock and poultry dying of illness

InactiveCN107377578ARealize zero pollution and harmless treatmentSimple processFatty oils/acids recovery from wasteSolid waste disposalHydrolysateAcid concentration

Owner:YANTAI UNIV

Reading lamp with electronic book protection cover

InactiveCN104565836AExtended service lifePrevent fallingLighting support devicesPortable electric lightingEngineeringElectronic book

Owner:WIIMEDIA SOFTWARE

Cut flower preservative and application thereof in lily cut flower preservation

InactiveCN112120015AImprove liquidityNo change in preservation propertiesDead plant preservationChlorophyll degradationChlorophyllin

Owner:四川润尔科技有限公司

Foam fire extinguisher

InactiveCN109173119AAvoid wastingSimple structureFire rescueImpellerFire extinguisher

Owner:CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY

Chinese medicinal herbs processing device

InactiveCN111195441AReduce filterIncrease productivitySeparation devicesSolid solvent extractionMedicinal herbsProcess engineering

Owner:湖北武当生物医药科技有限公司

Pit digging machine for nursery stock planting

InactiveCN111990018AIncrease distanceIncrease the lengthPlantingFurrow making/coveringGear wheelAgricultural engineering

Owner:怀化佳城生态农林开发有限公司

Insect removal device for flower seedlings

PendingCN112471113APrevent rotWon't wasteSelf-acting watering devicesTransportation and packagingWater storageBiology

Owner:无锡南村花卉苗木专业合作社

Natural ventilation salt-bath scaled model experimental device

InactiveCN101561343AReal display of temperature fieldLow costAerodynamic testingScale modelEngineering

Owner:HARBIN INST OF TECH

Shared memory based data access method and device

InactiveCN103559079AFast accessImprove real-time performanceSoftware simulation/interpretation/emulationAccess methodData access

Owner:AUTEL INTELLIGENT TECHNOLOGY CORP LTD

Processing mechanism for heating and cooling workpiece

InactiveCN108088245AHeating and coolingFurnace typesHandling discharged materialAir volumeEngineering

Owner:惠州圣益科技有限公司

LED drive circuit capable of improving stroboscopic phenomenon

InactiveCN103220848AEliminate the effects ofEliminate frequency flickerElectric light circuit arrangementElectrolytic capacitorControl theory

Owner:成都茂扬电子科技股份有限公司

Improved automobile direction pipe column bracket welding structure

PendingCN110027602AReasonable structureLow costSteering columnsWeldingCivil engineering

Owner:JIANGSU FUTAO VEHICLE PARTS

Train traction control method and device, train, electronic equipment and storage medium

ActiveCN113002589AOperational safetyGuaranteed uptimeSignalling indicators on vehicleControl engineeringElectrical and Electronics engineering

Owner:CRRC QINGDAO SIFANG CO LTD

Tea residue recovery device for fermented fertilizer

ActiveCN112964030AQuick recyclingAvoid getting in the wayDrying solid materials without heatDrying goods handlingAgricultural scienceAgricultural engineering

Owner:ANHUI SHITAI COUNTY XIHUANGSHAN TEA IND

Optical glass

InactiveCN106904825ALow costLow Abbe numberRefractive indexOptical glass

Owner:合肥协耀玻璃制品有限公司

Data processing method and system based on stream processing framework

ActiveCN114661563AGuaranteed real-timeHardware monitoringProgram loading/initiatingData streamData mining

Owner:HUNDSUN TECH

High-density breeding fan

ActiveCN114673689AReduce structural complexityEffective axial limitPump componentsPump controlHigh densityMarine engineering

Owner:TIANJIN JIEQIANG POWER EQUIP

Water quality monitor

PendingCN110672595AUniform temperatureEliminate the effects ofMaterial analysis by observing effect on chemical indicatorColor/spectral properties measurementsPeristaltic pumpWater quality

Owner:XIAMEN BLUE OCEAN SCI INSTR

Groove type drying and ironing machine

PendingCN111910406AUniform air intakeEvenly ventedIroning machinesTextiles and paperEngineeringHeat transfer efficiency

Owner:JIANGSU SEA LION MASCH GRP CO LTD

Method for treating water containing iron, manganese and arsenic

InactiveCN100503464CEasy to useOther chemical processesSeparation devicesFerric hydroxidePotable water

Owner:VEOLIA WATER SOLUTIONS & TECH SUPPORT

Coating type heating tile floor structure and paving method thereof

InactiveCN113550532AFirmly connectedGuaranteed stabilityCovering/liningsLighting and heating apparatusHeat conservationCoating

Owner:中汇建筑集团有限公司

File generation method and device, server and storage medium

PendingCN113434472AIncrease generation speedReduce error rateFile/folder operationsSpecial data processing applicationsComputer hardwarePathPing

Owner:PINGAN INT SMART CITY TECH CO LTD

Culture fluid gas/liquid and liquid/liquid exchanger for tissue engineering tissue bionic cultivation

InactiveCN101486967AEasy to updateRealize pulsed cycle updateTissue/virus culture apparatusFiberCulture fluid

Owner:THE FIRST AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIVERSITY OF PLA

Motor transmission mechanism applied to fruit picking robot

ActiveCN107046939ASimple transmission structureSimple structurePicking devicesEngineeringGear transmission

Owner:永春县产品质量检验所福建省香产品质量检验中心国家燃香类产品质量监督检验中心福建

Horizontal SIM (Subscriber Identity Module) card socket and mobile phone

ActiveCN104393433ASmall form factorReduce occupancyCoupling contact membersCouplings bases/casesEngineeringSubscriber identity module

Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Preparation method of sildenafil

ActiveCN102690273AMaintain stabilityRaw materials are easy to getOrganic chemistry2-Ethoxybenzoic acidSide reaction

Owner:HANGZHOU ADAMERCK PHARMLABS INC

Salt fog carbonization test device and test method thereof

ActiveCN105675479AImprove utilization efficiencyReduce testing costsWeather/light/corrosion resistanceMaterial testing goodsControl systemCarbonization

Owner:SHENZHEN UNIV

Method and device for automatic generation of excitation codes

ActiveCN102957553AHigh degree of automationReduce workloadBaseband system detailsData switching networksAutomatic Generation ControlWorkload

Owner:ZTE CORP

Urban road structure and construction process thereof

ActiveCN112726314ALimit upper surface heightNot prone to misalignmentSingle unit pavingsClimate change adaptationBrickRoad engineering

Owner:厦门东翔工程设计有限公司

Transmitting digital beam forming method based on digital delay and phase compensation

ActiveCN105204004AEffective generationWave based measurement systemsFiltrationIntermediate frequency

Owner:HOHAI UNIV

Drill bit gauge pad control

InactiveCN101778992ADrill bitsDrilling rodsEngineeringBiomedical engineering

Owner:PRAD RES & DEV LTD

Camera protection glass module detection system

ActiveCN111604274AQuick checkQuick unloadingSortingStatistical analysisMechanical engineering

Owner:TZTEK TECH

Preparation method of super-hydrophobic super-oleophylic sponge

InactiveCN104086796ALow priceEasy to separateCoatingsOrganic solventCarbon chain

Owner:东莞市腾崴塑胶制品有限公司

Method for preparing rare earth polishing powder and recovering ammonium salt by using fluorine-containing niobium-tantalum wastewater

InactiveCN104774561AReduce fluoride ion contentGood market capacityOther chemical processesMultistage water/sewage treatmentNiobiumFiltration

Owner:NANCHANG UNIV +1

Method for preparing magnesium borate whiskers from magnesite

ActiveCN112877783APromote crystallizationUniform shapePolycrystalline material growthFrom melt solutionsMaterials preparationMolten salt

Owner:NORTHEASTERN UNIV LIAONING

Anthraquinone and preparation method for derivative thereof

InactiveCN101125808AEasy to operatePromote safe productionOrganic compound preparationQuinone preparationBenzeneChemical synthesis

Owner:ZHEJIANG UNIV OF TECH

Softening and coagulating treatment process of gas scrubbing water

InactiveCN1526662AReduce hardnessReduce calcium hardnessWater softeningWater/sewage treatment by flocculation/precipitationSolid matterCalcium carbonate crystals

Owner:SHANGHAI HUAYI ENERGY CHEM +1

Method for load control of steam turbine in frequency-variable rotating speed reducing process of SHRT (sinter blower residual heat recovery turbine) set

ActiveCN109268079AEnsure safetyResolve downtimeMachines/enginesSafety/regulatory devicesFrequency changerPower flow

Owner:XIAN SHAANGU POWER

Vacuum pressing machine

ActiveCN112020241AAvoid uneven heatingAvoid spallationMultilayer circuit manufactureEngineeringPhysics

Owner:TOP RANGE MACHINERY

Display motherboard and electrostatic discharge method, and base station

ActiveCN106940494APrevent electrostatic dischargeThe testing process is not affectedNon-linear opticsElectrostatic chargesEngineeringElectrostatic discharge

Owner:BOE TECH GRP CO LTD +1

Lead paste for negative electrode of lead-carbon battery, preparation method of lead paste, polar plate for negative electrode of lead-carbon battery, and lead-carbon battery

ActiveCN108493448AIncrease profitInhibition of hydrogen evolution reactionLead-acid accumulatorsCell electrodesFiberActivated carbon

Owner:江苏德新管道科技有限公司